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chemistry > lab tools/equipment > Flashcards

lab tools/equipment Flashcards

1
Q

iron ring

A

description - iron ring with screw faster several sizes available
use - to fasten to the ring stand as a support for apparatus

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2
Q

buret clamp/ test tube clamp

A

description - screw fastener, swivel and lock nut, adjusting screw, curved clamp
use - to hold apparatus may be fastened to the ring stand

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3
Q

pinch clamp

A

description - metal clamp with finger grips
use - to clamp a rubber connector

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4
Q

test tube rack

A

description - rack, may be wood, metal, or plastic
use - to hold test tubes in an upright position

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5
Q

plastic water bottle

A

description - squeezable plastic bottle with angular tip
use - to dispense distilled water

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6
Q

test tube brush

A

description - brush with wire handle
use - to scrub glass apparatus

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7
Q

stirring rod

A

description - glass rod
use - to stir combination of materials, to use in pouring liquids

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8
Q

porcelain dish

A

as a container for small amounts of liquid being evaporated

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9
Q

watch glass

A

description - curved glass
use - may be used as a beaker cover may be used in evaporating very small amounts of liquids

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10
Q

medicine dropper

A

description - glass tip with rubber bulb
use - to transfer small amounts of liquids

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11
Q

forceps

A

description - metal
use - to pick up or hold small objects

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12
Q

beaker

A

description - glass
use - as a container (like a cup), may be heated

common sizes:
50 mL
250 mL
400 mL

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13
Q

graduated cylinder

A

description - glass, marked with a mL scale
use - to measure volume

sizes/divisions
50 mL 1.0 mL
35 mL 9.2 or 0.5 mL
10 mL 0.1 mL

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14
Q

erlenmeyer flask

A

description - glass
use - may be heated
common sizes:
125 mL
250 mL
500 mL

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15
Q

tongs

A

description - metal
use - to pick up or hold apparatus

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16
Q

gas measuring tube

A

desciritipn - glass, marked with a mL scale
use - used to collect and measure the volumes of gases

17
Q

ceramic-fibered square

A

description - hardened ceramic-fibered material
use - to place under hot apparatus

18
Q

mortar and pestles

A

description - heavy porcelain dish with grinder
use - to grind chemicals to a powder

19
Q

spatula

A

description - may be of metal or porcelain
use - to transfer solid chemicals in weighing

20
Q

triangular file

A

description - metal file with 3 cutting edges
use - to scratch glass to file

21
Q

rubber connector

A

description - short length of rubber tubing
use - to connect parts of apparatus

22
Q

glass plate

A

description - thick glass
use - many uses (shouldn’t be heated)

23
Q

funnel

A

description - glass or plastic
use - to hold a filter paper - may be used in pouring

24
Q

funnel support

A

description - wooden frame with slots for funnels; has a metal clamp

use - to support/hold funnels

25
Q

wide-mouth bottle

A

description - glass
use - many uses as a container for things

26
Q

florence flask

A

glass

common sizes:
125 mL
250 mL
500 mL

may be heated

27
Q

test tube

A

description - glass, several sizes
use - many uses / can be heated

28
Q

double-buret clamp

A

description - metal clamp with flexible clips
use - to hold burets when titrating

29
Q

10 cm ruler

A

description - 10 cm ruler, plastic divided into centimeters and millimeter divisions

use - to measure length

30
Q

pipstem triangle

A

description - triangular wire frame with clay material coverings
use - to support the crucible

31
Q

crucible and cover

A

description - small porcelain dish with cover
use - to heat small amounts of solid materiel at a high temperature

32
Q

wire gauze

A

description - wire screen with ceramic-fibered center
use - to spread the heat of a flame

33
Q

labaratory burner

A

description - metal heating device connected to gas outlet with rubber tubing

use - to heat chemicals in beakers or test tubes

34
Q

ring stand

A

description - metal rod upright heavy base

use - to support with many uses

35
Q

buret

A

description - glass / marked with a mL scale and fitted with a stopcock, pinch clamp, or glass bead

use - used to withdraw and measure volumes of solutions in titrations

36
Q

volumetric flask

A

description - glass / marked off to liter capacity, with a glass stopper

use - used in the prep of solutions

chemistry (1 decks)

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